\documentclass{article}
% translate with >> pdflatex -shell-escape <file>

% This file is used as unit test for pgfplots, copyright by Christian Feuersaenger.
% 
% See
%   http://pgfplots.sourceforge.net/pgfplots.pdf
% for pgfplots.
%
% Any required input files (for <plot table> or <plot file> or the table package) can be downloaded
% at
% http://www.ctan.org/tex-archive/graphics/pgf/contrib/pgfplots/doc/latex/
% and
% http://www.ctan.org/tex-archive/graphics/pgf/contrib/pgfplots/doc/latex/plotdata/

\usepackage{pgfplots}
\pgfplotsset{compat=newest}

\pagestyle{empty}

\begin{document}

\pgfplotsforeachentryinCSV\loop{1,2,3,4,5,6}{%
	Single loop iter \#\loop\par
}%

\pgfplotsforeachentryinCSV\loop{1,2,3,4,5,6}{%
	\pgfplotsforeachentryinCSV\loopb{1,2,3,4,5,6}{%
		Nested loop iter \#\loop,\loopb\par
	}%
	\par
	(End of outer \#\loop)

}%
\end{document}

